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FSD to ALN: distance & flight time
Sioux Falls (Joe Foss Field Airport) → Alton/St Louis (St Louis Regional Airport)
475 mi
765 km · 413 nm
1h 30m
estimated nonstop flight time
—
time difference · heading southeast
See live FSD→ALN fares Phone-only fares on this route — call free
Flight time details
475 miles nonstop takes roughly 1h 30m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- FSD — Joe Foss Field Airport · Sioux Falls, United States
- ALN — St Louis Regional Airport · Alton/St Louis, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near FSD
- YKN · Chan Gurney Municipal Airport56 mi away
- MHE · Mitchell Municipal Airport66 mi away
- SPW · Spencer Municipal Airport82 mi away
- SUX · Sioux Gateway Col. Bud Day Field83 mi away
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is FSD from ALN?
The flight distance from Sioux Falls (FSD) to Alton/St Louis (ALN) is 475 miles (765 km, 413 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSD to ALN?
A nonstop flight takes about 1h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from FSD to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSD–ALN that never appear on search engines, with no booking fees.